Sensor powered event logger
US7747415B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2006 |
| Grant date | Jun 29, 2010 |
| Priority date | — |
| Expiry date | Jan 29, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P1/127
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system includes a structure and a circuit. The circuit is mounted to the structure. The circuit includes a sensor, a non-volatile memory, and a voltage sensitive switch. The memory and the voltage sensitive switch are connected for recording an event sensed by said sensor. The recording only uses power derived from the sensor. One embodiment of the circuit includes a processor connected for receiving a signal derived from the sensor. In this embodiment the non-volatile memory is connected to the processor for receiving and storing data derived from the signal. In one embodiment a first energy storage device is connected to receive energy from the sensor. The voltage sensitive switch is connected for releasing energy from the first energy storage device when energy stored in the first energy storage device exceeds a threshold. The processor and the non-volatile memory are connected for receiving power from the released energy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.